Tray fastener



FIG. 1 is a top, front, left isometric view of a tray fastener incorporating our new design;

FIG. 2 is a left side elevation view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is front end elevation view thereof;

FIG. 5 is a rear end elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in the drawings illustrate portions of the tray fastener and form no part of the claimed design. The dot-dash-dot broken lines in the drawings define the bounds of the claim and form no part thereof. 

CLAIM The ornamental design for a tray fastener, as shown and described. 